JPH0113534B2 - - Google Patents

Info

Publication number
JPH0113534B2
JPH0113534B2 JP57041374A JP4137482A JPH0113534B2 JP H0113534 B2 JPH0113534 B2 JP H0113534B2 JP 57041374 A JP57041374 A JP 57041374A JP 4137482 A JP4137482 A JP 4137482A JP H0113534 B2 JPH0113534 B2 JP H0113534B2
Authority
JP
Japan
Prior art keywords
period
acoustic signal
output
crack
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP57041374A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58156854A (ja
Inventor
Kazutoshi Takahashi
Shoichi Kikuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP4137482A priority Critical patent/JPS58156854A/ja
Publication of JPS58156854A publication Critical patent/JPS58156854A/ja
Publication of JPH0113534B2 publication Critical patent/JPH0113534B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/26—Scanned objects
    • G01N2291/269—Various geometry objects
    • G01N2291/2695—Bottles, containers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
JP4137482A 1982-03-15 1982-03-15 亀裂音響信号検出装置 Granted JPS58156854A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4137482A JPS58156854A (ja) 1982-03-15 1982-03-15 亀裂音響信号検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4137482A JPS58156854A (ja) 1982-03-15 1982-03-15 亀裂音響信号検出装置

Publications (2)

Publication Number Publication Date
JPS58156854A JPS58156854A (ja) 1983-09-17
JPH0113534B2 true JPH0113534B2 (en]) 1989-03-07

Family

ID=12606638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4137482A Granted JPS58156854A (ja) 1982-03-15 1982-03-15 亀裂音響信号検出装置

Country Status (1)

Country Link
JP (1) JPS58156854A (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021124480A1 (ja) * 2019-12-18 2021-06-24 株式会社東芝 構造物評価システム、構造物評価装置及び構造物評価方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61271450A (ja) * 1985-05-27 1986-12-01 Shimadzu Corp Ａｅ計測装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54100789A (en) * 1978-01-25 1979-08-08 Denriyoku Chuo Kenkyusho Processor that change acoustic emmited signal into binary signal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021124480A1 (ja) * 2019-12-18 2021-06-24 株式会社東芝 構造物評価システム、構造物評価装置及び構造物評価方法
JPWO2021124480A1 (en]) * 2019-12-18 2021-06-24

Also Published As

Publication number Publication date
JPS58156854A (ja) 1983-09-17

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